| Component | Flowise |
| Severity | medium (CVSS 6.5) |
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
| Published (NVD) | 2026-09-12 |
| Last modified | 2026-09-15 |
| Affected versions | flowise < 3.1.4 |
| Fixed in | 3.1.4 |
| Weakness | CWE-862 |
| CISA KEV | not listed |
NVD description
Flowise before 3.1.4 contains a broken access control vulnerability in GET /api/v1/organizationuser that allows any authenticated organization member to retrieve the organization owner's full user record including bcrypt password hash and temporary tokens. Attackers can query the endpoint with any user ID to obtain the owner's credential hash for offline cracking, enabling account takeover of the highest-privileged account.
What to do
- Upgrade Flowise to
3.1.4or later. - Do not expose the component's API or UI to the internet without authentication in front of it.
Sources
- NVD: CVE-2026-90533
- https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-fhxm-xxcx-g6x3
- https://www.vulncheck.com/advisories/flowise-before-3.1.4-broken-access-control-via-organizationuser
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